<template>
  <el-container>
    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="180px" label-position="left">
      <el-form-item label="小程序名称" prop="name" size="small">
        <el-input v-model="ruleForm.name"></el-input>
      </el-form-item>

      <el-form-item label="地址" prop="name" size="small">
        <el-input v-model="ruleForm.name"></el-input>
      </el-form-item>

      <el-form-item label="客服电话" prop="name" size="small">
        <el-input v-model="ruleForm.name"></el-input>
      </el-form-item>

      <el-form-item label="海报图片" prop="name" size="small">
        <el-upload
          class="avatar-uploader"
          action="https://jsonplaceholder.typicode.com/posts/"
          :show-file-list="false"
          :on-success="handleAvatarSuccess"
          :before-upload="beforeAvatarUpload">
          <img v-if="imageUrl" :src="imageUrl" class="avatar">
          <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
      </el-form-item>

      <el-form-item size="small">
        <el-button type="primary" @click="submitForm('ruleForm')">立即保存</el-button>
        <!--<el-button @click="resetForm('ruleForm')">重置</el-button>-->
      </el-form-item>
    </el-form>

  </el-container>
</template>

<script>
export default {
  data() {
    return {
      imageUrl: '',
      ruleForm: {
        name: '',
        region: '',
        date1: '',
        date2: '',
        delivery: false,
        type: [],
        resource: '',
        desc: ''
      },
      rules: {
        name: [
          { required: true, message: '设置小程序名称', trigger: 'blur' },
        ],
        region: [
          { required: true, message: '请选择活动区域', trigger: 'change' }
        ],
        date1: [
          { type: 'date', required: true, message: '请选择日期', trigger: 'change' }
        ],
        date2: [
          { type: 'date', required: true, message: '请选择时间', trigger: 'change' }
        ],
        type: [
          { type: 'array', required: true, message: '请至少选择一个活动性质', trigger: 'change' }
        ],
        resource: [
          { required: true, message: '请选择活动资源', trigger: 'change' }
        ],
        desc: [
          { required: true, message: '请填写活动形式', trigger: 'blur' }
        ]
      },
    };
  },
  methods: {
    handleAvatarSuccess(res, file) {
      this.imageUrl = URL.createObjectURL(file.raw);
    },
    beforeAvatarUpload(file) {
      const isJPG = file.type === 'image/jpeg';
      const isLt2M = file.size / 1024 / 1024 < 2;

      if (!isJPG) {
        this.$message.error('上传头像图片只能是 JPG 格式!');
      }
      if (!isLt2M) {
        this.$message.error('上传头像图片大小不能超过 2MB!');
      }
      return isJPG && isLt2M;
    },
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          alert('submit!');
        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  }
}
</script>

<style scoped>

  .el-container{
    display: block;
  }

  /* 表单 */
  .el-form{
    width: 1000px;
    margin: 15px 0 15px 30px;
  }

  /* 图片上传 */
  .avatar-uploader{
    border: 1px dashed #d9d9d9;
    width: 178px;
  }
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }

</style>
